Question

resolva as equações por favor f) 12x-10=5x+11 g) 8x-9=2x+11 h) 10-4x=9-2x i) 2(7x+2) +12 ( x+1)=2

Answer 1

f) 12x - 10 = 5x + 11

12x - 5x = 11 + 10
7x = 21
x = 21/7
x = 3
.
.
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g) 8x - 9 = 2x + 11

8x - 2x = 11 + 9
6x = 20
x = 20/6
x = 10/3
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.
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h) 10 - 4x = 9 - 2x

-4x + 2x = 9 - 10
-2x = -1
x = -1/-2
x = 1/2
.
.
.
i) 2.(7x + 2) + 12.(x + 1) = 2

14x + 4 + 12x + 12 = 2
14x + 12x = 2 - 4 - 12
26x = -14
x = -14/26
x = -7/13




★Espero ter ajudado!

Answer 2

Olá

f) 12x-10= 5x+11
12x-5x= 11+10
7x= 21
x=21/7
x= 3

g) 8x-9=2x+11
8x-2x= 11+9
6x= 20
x= 20/6 (simplifica por 2)
x= 10/3

h) 10-4x=9-2x
-4x+2x=9-10
-2x= -1 (-1)
2x= 1
x= 1/2

i) 2 (7x+2)+12 (x+1)=2
14x+4+12x+12=2
14x+12x= 2-4-12
26x= -14
x= -14/26 (simplifica por 2)
x= -7/13

Espero ter ajudado.